package dao;

public interface DAO <I , PK> {
	PK create (I item) ;
	
	default I find (PK key) {
		System.out.println("method find NOT defined");
		return null ;
	};
	
	default void update (I item) {
		System.out.println("method update NOT defined");
	}
	
	default void delete (PK key) {
		System.out.println("method delete NOT defined");
	}
}
